Koumpara, Greece offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Koumpara is known for its beautiful beaches and stunning sunsets in the South Aegean, Greece. The best time to travel to Koumpara, Greece, is from late May to early October, with average air temperatures ranging from 75°F to 85°F and water temperatures from 72°F to 79°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!